These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.07 s (backtrack: 0/20).

[ebuild  N     ] acct-group/mysql-0-r3::gentoo  0 KiB
[ebuild  N     ] app-arch/lz4-1.10.0-r1:0/1.10.0-meson::gentoo  USE="-static-libs -test" 379 KiB
[ebuild  N     ] dev-db/mysql-connector-c-8.0.41-r1:0/21::gentoo  USE="-ldap -static-libs" 477295 KiB
[ebuild  N     ] acct-user/mysql-0-r3::gentoo  0 KiB
[ebuild  N     ] dev-db/mysql-init-scripts-2.3-r8::gentoo  0 KiB

Total: 5 packages (5 new), Size of downloads: 477673 KiB